<template>
    <div class="pagination-container hidden-scrollbar" id="pagination">
        <el-pagination :background="background" :layout="layout" :current-page.sync="currentPage" :page-size.sync="pageSize" :page-sizes="pageSizes" :total="total" v-bind="$attrs" @size-change="handleSizeChange" @current-change="handleCurrentChange" />
    </div>
</template>

<script>
import { scrollTo } from '@/utils/scroll-to'

export default {
    name: 'Pagination',
    props: {
        total: {
            required: true,
            type: Number
        },
        page: {
            type: Number,
            default: 1
        },
        limit: {
            type: Number,
            default: 10
        },
        pageSizes: {
            type: Array,
            default() {
                return [5, 10, 20, 50, 100]
            }
        },
        layout: {
            type: String,
            default: 'prev, pager, next'
        },
        background: {
            type: Boolean,
            default: true
        },
        autoScroll: {
            type: Boolean,
            default: true
        }
    },
    computed: {
        currentPage: {
            get() {
                return this.page
            },
            set(val) {
                this.$emit('update:page', val)
            }
        },
        pageSize: {
            get() {
                return this.limit
            },
            set(val) {
                this.$emit('update:limit', val)
            }
        }
    },
    methods: {
        handleSizeChange(val) {
            this.$emit('pagination', { page: this.currentPage, limit: val })
            if (this.autoScroll) {
                scrollTo(0, 800)
            }
        },
        handleCurrentChange(val) {
            this.$emit('pagination', { page: val, limit: this.pageSize })
            if (this.autoScroll) {
                scrollTo(0, 800)
            }
        }
    }
}
</script>

<style lang="scss" scoped>
.pagination-container {
    margin-top: 20px;
    overflow-x: scroll;
    text-align: center;
}
</style>
